Professor Daniel J. Jacob of Harvard University has compiled this very fine set of educational materials that deal with various aspects of atmospheric chemistry. He draws these resources from his own teaching experience, along with offering slides, presentations, and information from his own introductory textbook on the subject. Visitors can click through sections that contain resources such as Power Point presentations on halogen chemistry, aerosols, and global biogeochemical cycles. Professor Jacob has also been kind enough to include several versions of his 1999 textbook titled “Introduction to Atmosphere Chemistry” for general consideration and use. Finally, the site also contains resources on chemical transport models intended for graduate students.
Source: The Scout Report — March 14, 2008

There are also some helpful hints about presentations and writing!